import random


def generate_test_cases():
    # 正常情况
    case1 = [2, 3, -2, 4]
    # 全正数
    case2 = [1, 2, 3, 4]
    # 全负数
    case3 = [-1, -2, -3]
    # 随机大数组
    case4 = [random.randint(-10, 10) for _ in range(1000)]

    test_cases = [case1, case2, case3, case4]
    return test_cases


if __name__ == "__main__":
    cases = generate_test_cases()
    for i, case in enumerate(cases, 1):
        print(f"测试用例 {i}: {case}")
